lockdown
noun/ˈlɒkdaʊn/
/ˈlɑːkdaʊn/
[countable, uncountable]- an official order to control the movement of people or vehicles because of a dangerous situation
- The government imposed a nationwide lockdown to contain the spread of the virus.
- a three-day lockdown of American airspace
- Prisoners have been placed on lockdown to prevent further violence at the jail.
- The prison governor ordered an instant lockdown (= prisoners were locked in their cells).
- The city schools were in lockdown.
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lockdown